WHO CAN TELL ME WHATS WRONG

[PK77]

Hi Guys, who can tell me what is wrong with this audi a4 2.0 tdi engine 2007.

 

[tr7]

What engine code is that? Is it original to the car?

I've never saw that EGR set up on an A4 before

 

[PK77]

It’s a 2007 convertible if that makes any difference? Yeah I have notices there are a lot of different lay outs of the 2.0 tdi while researching what’s could be wrong with my car.